Elkhart Brass Hydro-Chem Flex HC-750-FLX - Manual (Page 4)

4
II. H
YDRO
-C
HEM
®
F
LEX
O
PERATION
A. Stream Adjustment
The water/foam discharge tip portion of the nozzle can be turned easily by grasping the
handgrips. Rotating per the arrows marked on label will achieve straight stream and fog
patterns. The adjustment of the stream can be accomplished without shutting the nozzle
down.
B. Water/Foam Settings
The standard operating pressure for water/foam
is 75 psi at the nozzle. The Hydro-Chem
®
Flex
nozzle has three water/foam settings and a flush
setting. A detent has been utilized to indicate
each position. Rotating the stem clockwise from
the inlet end of the nozzle will increase the flow all the way to the flush position shown in the
picture while rotating the stem in the opposite direction will decrease the flow. The nozzle
must be shut down before changing the flow setting.
SYMBOL DESCRIPTION
FLUSH
750 GPM @ 75 PSI (2900 LPM @ 5 bar)
500 GPM @ 75 PSI (2000 LPM @ 5 bar)
300 GPM @ 75 PSI (1150 LPM @ 5 bar)
C. Dry Chemical Settings
The standard operating pressure for dry chemical/air is 150 psi at the nozzle. The discharge
size of the nozzle can be adjusted by simply rotating the dry chemical discharge tip of the
nozzle. Rotating the tip in the direction indicated by the arrows will achieve the largest
discharge setting of 20 lbs/s (9 kg/s) and the smallest discharge setting of 10 lbs/s (4.5 kg/s).
If it is desirable to have a dry chemical shut-ff the nozzle, the HC-150-A shut-off is designed to
attach directly to the air inlet of the nozzle. A detent has been utilized to indicate each
discharge position. The nozzle must be shut down before changing this setting.
WATER/FOAM
DISCHARGE TIP
HANDGRIP
DRY CHEMICAL
DISCHARGE TIP
STEM